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Just heard from Ian. Car is putting down 400whp @ 15 psi with really soft tuning. Gonna put some miles on the motor before we really turn the wick up but he says the car is running great so far and I can pick it up tomorrow.

I'll be getting a hold of Dom @ MPS to tell him I'll be needing that 2.34L motor pretty soon. Since this is the motor that was in my last car that burnt to the ground I don't really feel all that comfortable pushing it that hard.

Remember these are dynojet #'s but I still think 400whp @ 15 psi is pretty damn good. I'll find out what a stock STi puts down on that dyno later.

Picked the car up last night and couldn't be happier. I'll post some logs when I get a chance but this morning on my way into work I logged 15 psi by 3250 rpm. I can't wait to crank up the boost on this thing.

Ian my tuner said the motor ran great and made the power it did without even breaking a sweat but it is a noisy engine that sounds like a race motor. He wanted me to put some miles on it and up the boost after a few miles. As for the driving impressions, remember I've been driving a 97 Legacy wagon and a 2003 Volvo S40 for the past year so anything I drive now would blow me away. If I compare it to my old 3076 I ran on this same motor I would say I may have made a tad more power with the 3076 but I also had to run 21 psi to do it. This 7670 is more fun to drive in every way at only 15 psi and its not even being pushed yet. I'm sure 20-21 psi on this 7670 will be ridiculously fast and I can't wait. I've put over 200 miles on the car since I picked it up yesterday and I can't stop driving the damn thing its so much fun. Even the fuel map is pretty

The best spool I've seen looking through my logs was 15 psi by 3200 rpm in 4th gear. I'd like to get some logs of a few 1-2-3-4 gear pulls but its actually raining in Socal now and full throttle runs like that aren't working out all that well in these conditions.

Here is a short 4 gear burst I logged on the way into work

I post up the dyno graph as soon as I upload it.

Do guys think I should put a thread in PPB to show what its done so far or should I wait until I make real power?

Here is the dyno of how the car left the shop. The more I drive it the more I love this freaking turbo. Its really a challenge to stay out of boost and as a result I need to change my driving style if I want to get anything over 16mpg. It's almost like the turbo spools on the freeway with just the weight of my foot on the gas pedal.

If an 18G and a 35R had a baby, that baby would be the EFR 7670. I took it up in the mountains the other day even though it was cold, wet, and I couldn't really get on it I would say this thing is every bit as responsive as my old Greddy 18G with about 100 more whp and I'm still only at 15 psi.

Note: Disregard the analog 2 channel on that graph, his boost pickup was having issues.

i've been following along and so happy to see more subaru 7670 information.

this was on pump, are you running final tune on pump, pump+meth, e85?

this kind of stuff gets me so excited for my replacement borg 7670 EWG to get here.

any troubles with the wastegate or actuator during the above tuning session?

I may add meth injection soon but I don't have any plans to run E85. I'll do pump gas, pump and meth(maybe), and race gas soon but probably not until I get my MPS motor. I may take it to 18-20 psi on the current block after about 1000 miles (350 so far) but that's all I feel comfortable with on stock rods after feeling how early this thing comes on. I'll probably continue to run without AVCS, replace the SB and then go for power.

As for boost control, the only problem we had was me hooking up the lines wrong initially. With boost control off we did get about 5 psi of taper but with about 38% WGDC boost held flat as hell to redline.

The wait sucked balls but so far I think it was worth it. I'd love to drive a GTX car now just to compare.

The more I drive it the more I love this freaking turbo... It's almost like the turbo spools on the freeway with just the weight of my foot on the gas pedal... If an 18G and a 35R had a baby, that baby would be the EFR 7670. I took it up in the mountains the other day even though it was cold, wet, and I couldn't really get on it I would say this thing is every bit as responsive as my old Greddy 18G with about 100 more whp and I'm still only at 15 psi.

200tq before 3000rpm and 300tq before 3500rpm on a stockish motor at lowest boost =

Quote:

Originally Posted by kellygnsd

With boost control off we did get about 5 psi of taper but with about 38% WGDC boost held flat as hell to redline. The wait sucked balls but so far I think it was worth it. I'd love to drive a GTX car now just to compare.

Thanks for sticking it out - really happy to know it was finally worth it in the end for you, enjoy it!!

We did quite a few of the 6758 EFR's on cars and were extremely pleased how they responded like a stock turbo with far better top end. Im happy to see more Subaru owners trying them out. We were building a 05 LGT Wagon with a rotated 7670, TS EWG turbo but never received the turbo.. waited over 4 months! That so far has been the major downfall with the EFR lineup. I also heard there was a major issue with the bearings in the center section which is what halted the shipping, hopefully they got that figured out!

We were building a 05 LGT Wagon with a rotated 7670, TS EWG turbo but never received the turbo.. waited over 4 months! That so far has been the major downfall with the EFR lineup. I also heard there was a major issue with the bearings in the center section which is what halted the shipping, hopefully they got that figured out!

i agree, over a year wait for my IWG 7064 from BW, sold it and now over six months on the 7670 EWG but looks like soon!

i hadn't heard of any bearing issues but i'm sure if there was one, it was sorted before delivery.

i like the plans you got for your car kelly! this journal has the best yet to come!

The SS investment castings was an early issue, which hopefully they resolved. There have been some cases of turbos loosing the turbine wheels. Wheels breaking off and possibly from bearing issues. It looks like from what I've seen it's mostly on the 6758 version.

Kelly's got a good one here so he's not gonna have any issues except what to do with all the power he'll make!!

The SS investment castings was an early issue, which hopefully they resolved. There have been some cases of turbos loosing the turbine wheels. Wheels breaking off and possibly from bearing issues. It looks like from what I've seen it's mostly on the 6758 version.

Kelly's got a good one here so he's not gonna have any issues except what to do with all the power he'll make!!

And I thought they cleared the turbine issues up in like march of last year because that's when I stopped seeing posts about them blowing up. But the casting issue lasted until fairly recently. Especially with the low quality of the replacement castings.

Anyways just what I've read on the Internet and seen pics of. So take that with a grain of salt. Also I'm done thread jacking.

So I did a my 500 mile oil change today. I also did a compression check, replaced the 160 T-stat with a stock one, and fixed a small exhaust leak at the V-Band.

The car is running great so far, hasn't burnt any oil and has no leaks but I have a decision to make about cranking up the boost after my first compression test results. I got 130,150,150,150 psi 1 - 4.

All 4 plugs look even and look fairly good I think

and the car runs, revs, and builds boost like a champ. I've been getting about 17 mpg but I'm sure I would get better if I wasn't in boost so damn much.
I'm bummed about the 20 psi difference between cyl1 and the others but I'll wait until I do another test at 1000 miles before I decide if I want to go for higher boost on this current motor. If the numbers look better than what they look like now I might crank boost up to 20 or so for ****s and giggles before I put the LR 2.34L in.

The 160F T-stat I had in was making my car run to cold. ECT would drop in to 80C if I was idling downhill not under power in the SoCal mornings. I went back to stock and my car is way happier with its start-up and warm-up routines and runs better when up to temp. Idle is improved to since ECT isn't fluctuating as much.

I took her out for a test run and to log some **** and got a 1-2-3-4 run in.
Check out the boost recovery between shifts.

The only thing that really needs tweaking on this is cold start and warm-up. I'm going to start assembling the 2.34L and probably will save the higher boost antic for the new motor but if @ 1000miles the compression results are the same or better I may crank it up to 20 psi just to see what it feels like before I install the LR motor.

Here are some pics of the hotside piping FSR made for me without the fender on

The Full Race piping on the cold side has a small fitment issue and as it is now won't allow me to install a fog light cover. I'm probably gonna have FSR redo the cold side piping too. Here's a pic with the bumper cover on

I'm hoping for better results in 500 miles but if not I'll have something better on standby.